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Finding the Fourth Proportional to 101,357.38, 151,919.34 and 54,511.84

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Solution

The fourth proportional to 101,357.38, 151,919.34 and 54,511.84 is: 81,704.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,357.38 : 151,919.34 = 54,511.84 : x
  2. Step 2: Convert to fraction form
    101,357.38/151,919.34 = 54,511.84/x
  3. Step 3: Cross multiply
    101,357.38x = 151,919.34 × 54,511.84
  4. Step 4: Simplify right side
    101,357.38x = 8,281,402,754.99
  5. Step 5: Solve for x
    x = 8,281,402,754.99/101,357.38
  6. Step 6: Final answer
    x = 81,704.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.